Solar Grade Quartz Tube

I. Application

Solar grade quartz tube is used as the base material for quartz components of diffusion and PE process in solar cell manufacturing.

II. Product Features

Solar grade quartz tube features high purity, low hydroxyl, etc.

III. Product Type

WQPQ181S, WQPQ181S-R

IV. Typical Size

 OD RangeOD ToleranceWT Tolerance Siding Ovality Bow
OD<100.00±1.00±10.00%20.00%1.00%0.10%
100.00≤OD<200.00±1.00±10.00%20.00%1.00%0.10%
200.00≤OD<300.00±1.00±10.00%20.00%1.00%0.10%
300.00≤OD<400.00±1.00±10.00%20.00%1.00%0.10%
400.00≤OD<500.00±1.00±10.00%20.00%1.00%0.10%
500.00≤OD<900.00±2.00±10.00%20.00%1.00%0.10%

V. Physical and Chemical Properties

i. Mechanical and Thermal Properties

ItemIndex Value
Density(g/cm32.2
Heat Conductivity(w/m·k,1000℃)2.28
Coefficient of Thermal Expansion(℃-1,1000℃)5.5×10-7
Softening Point (℃)1670
Annealing Point(℃)1210
Strain Point(℃)1110

ii. OH Contents

WQPQ181SOH<10ppmWQPQ181S-ROH<30ppm

iii. Trace Elements

Code Criteria Al Ca Cr Cu Fe K Li Mg Mn Na Ti Zr
 PQ181S、PQ181S-R Typical 16.2 1 <0.05 <0.05 0.5 1.2 0.9 0.2 <0.05 1.1 1.5 1
 Maximum 25 1.5 0.1 0.1 1 1.5 1.5 0.2 0.2 2 4 2

iv. Optical Properties

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